Combined dump-cart and mixer.



L. L. CARTER.

COMBINED DUMP CART AND MIXER.

APPLICATION FILED IULYQ, 1915.

l Patented Apr. 25, 1916.

COMBINED DUMP-CART AND Mixen.

Specification of Letters Patent.

Patented Apr. 25, 1916.

Application led July 9, 1915. Serial No. 38,871.

To all whom t may concern:

Be it known that I, Lewis L. CARTER, a citizen of the United States, and a resident of Portland, in the county of Multnomah and State of Oregon, have invented a new and useful Improvement `in .Combined Dump-Carts and Mixers, of which the following is a specification.

My invention is an improvement in concrete mixers, and the invention has for its object to provide a portable mixer of the character specified, Vwherein a cylindrical container is provided, having mixing vanes or blades and mounted to rotate on a wheeled support, and having means for rotating the same, the support having a deliverychute to which the container delivers.

In the drawings -Figure 1 is a perspec- Itive view ofthe improved mixer, Fig. 2 is a longitudinal vertical section showing the parts 1n one position, Fig. 3 1s a similar view showing the parts in another position,

Figs. 4 and 5 are sections on the lines 4 and 5 of Fig. 1, each looking in the direction of the arrow adjacent to the line, Fig. 6 is a partial section at right angles to Fig. 2, Fig. 7 is a section through the mounting of the container, and Fig. 8 is a perspective view of the latch for the cover.

The present embodiment of the invention comprises a substantially cylindrical casing 1, having an opening 2 at its periphery for permitting the insertion and the removal of the material, and a cover 3 is provided for closing the opening, the said` cover being arc-shaped transversely and having guided movement crcumferentially of the casing.

As shown in Figs. 4 and .5, rings 4 of angle material are secured to the ends of the casing, each ring having a portion fitting against the end and secured thereto by rivlets 5 or the like, and a portion extending at right angles thereto and parallel with the periphery of the container but spaced apart therefrom to form guideways 6, for receiv ing the edges of the cover 3. The cover is thus mounted to move in the guideways circumferentially of the 'container and on the outside thereof.

A shaft 8 extends axially of the container, being held in brackets 9 at the ends of the casing and on the outerl faces of the ends, and the shaft extends beyond the ends of the casing as shown in Fig. 6. Each end of the shaft is journaled in a sectionalbearing on the wheeled support, and each bearing comprises a lower section 10, and an upper section 11, which is secured to the lower section and to the support to be described, by-bolts and nuts 12.

The `sections have transverse recesses cooperating to forinthe bearing for the shaft, and a ball or roller Vbearing 13 is arranged between the shaft and the sectional bearing. The wheeled support comprisesa frame composed of `oppositely arranged bars 14 of angle material, the said bars being arranged with one portion horizontal and the other vertical and with the vertical portion at the inner `side of the horizontal portion.

The bars are connected at one end by a UT-shaped bracket 15, the said `bracket comprisinga body extending transversely between the bars 14, and arms secured to the bars 14 and extending at right angles to the body, and a rounded handle 16 is secured to the opposite end of each of the bars 14.

The bearing sections 10 and 11 are secured to the horizontal portions of the bars 14 by the bolts and nuts 12, before mentioned, and the frame 14-15 is connected to a delivery chute comprising a bottom 17 and side walls 18 extendingupwardly from the bottom, by means of a U-shaped bracket, consisting of a body 19, arranged .trans versely of the bottom of the chute intermediate the ends thereof, and arms 20 extending upwardly alongside the outer faces of the sidewalls 18 of the chute, and connected at their upper ends to the bars 14. The

of the chute, and journal pins 21 extend laterally outward from the arms 20 of the bracket, and wheels 22 are journaled on the pins.

A sprocket ring 23 is secured to one end of the container by lmeans of rivets 24, or the like, and a sprocket chain 25 connects the ring with a sprocket wheel 26 on 'a crank 27, which is journaled on the adjacent bar 4, and it willbe evident that whenthe crank 27 is turned the container will be rotated on the `shaft `8. Hoods or shields 28 are secured to the bars 14 at each end of the container, each hood ory shield being arched above the adjacent bearing 10-11, and the said shields prevent the material loaded into the container from gaining access to the bearings. i

`The cover.. 3 is provided `near one edge rarms 20 are also secured to the side walls 18 y and close the door or coverB. It will be` evident that when this slide is moved to bring the tongue 31 thereof into position to engage the bracket. 29', the cover. will be moved when thecontainerfis turned in the proper direction bythe crank 27. By. engaging the tongue 31 between the sidewalls of thebracket, the cover may be moved in either direction byy turning. the container in the properdirection.

Mixing varies 32 are secured to the inner surface of the body ofy the, container, andthe said vanesor` blades extend radially 1nward. The lblades or. varies are arranged spirally orinclined, with respect. to the container, and each blade or. vane has an angular flange or rib 33, which abuts againstV the inner face of the peripheral wall ofthe con tainer, and `is secured` thereto to hold the bladevor vane in properposition. The bottom 17 of the chute is curved upwardly at its rear, .as shown at 17a, following the curve of .the peripheral wall of the container, 'and the said curved. portion abuts the under faces of the bars 14g A supporting legl is securedfto each ofthe bars 14 just in rear of the'adjacent wheel, andthe said legs are of a length to holdthe frame 14-15horizontal when the legs engage the ground or other. supportingV surface lfor the mixer. v

The operation of the mixer is as follows -With the parts in the position of. Fig. 1, the mixer is ready to be loaded. .The cement, sand, gravel and water are placedv in the'container in the proper proportions, and the door or covery 3 is closed. An operative now grasps the crank 27, and rotates the container until the ingredients have been properly mixed. The vanes 32 carryup a portion ofthe material, and: drop it down from the top of the container, and but slight rotation is required to thoroughly mix the several ingredients. During this time the support is in the position of Figs. 1l and 2 with the legs 34 'resting on the ground. When the mixing is complete the operative grasps the handle 16, and pushes or pulls the entire device to the place of discharge. Vhen this place is reached the container is vturned until the bracket 29 `is in register proper position to discharge into the chute 18. At thesame moment the operative lifts upwardon the handle 16 and the entire contents of-the mixer lare dumped through the opening and` off` the chute.

The device is easily discharged, and easily loaded, and the arrangement of the cover prevents any jamming of the cover because ofthe material. pressing against the same.

The shields 23 protect the bearings, and since the container is mounted on ball or roller bearings the friction is greatly reduced, making the mixing extremely easy.

The device, as a whole, is simple, inexpensive and easily operated. It may be charged at a distance from the work, and serves thus as a carrier. as well as a mixer. In actual use two men can. mix, Wheel, and discharge more concrete than double the number` operating with shovels and wheel bar rows. Apreferable size of machine is one handling G- cubic feet of material. The container is a drum, having a peripheral opening and a cover for closing the opening.

I- elaim 1. A device ofthe character specified, comprising a substantially U-shaped frame consisting of a body and arms, a chute supported'below vthe frame and having its openy end at the body of the frame, wheels journaled on the chute at the opposite sides thereof for supporting the frame, a drum having a peripheral opening, journaled between the arms of the frame above the chute, an arch cover for closing the opening and having guided movement on the drum, means on the frame for rotating the drum, a latch member mounted to slide on the body of the frame, the cover having a stop for engaging the latch member to hold the cover from movement with the drum as the opening of the drum registers with the chute.

2. A device of the character specified, comprisingv a substantially U-shaped frame consisting of a body and arms, a chute supported below the frame and having its open end atk the body of the frame, wheels journaled on the chute at the opposite sides thereof. for supporting the frame, a drum having a peripheral opening, journaled between the arms of the frame above the chute, an arch cover for closing the opening and having guided movement on the drum, and means on the frame for rotating the drum.

3. device of the character specified, comprising a wheel supported frame having a chute provided with an open end at the front of the frame, and supported below the frame, a drum journaled transversely of the frame above-the chute and having a peripheral opening, means for rotating the drum, a cover having guided movement circumferentially of the drum for closing the opening, and means in connection with the frame and the cover for holding the cover from movement as the opening moves into register With the chute.

4. A device of the character specified, comprising a wheel supported frame, a drum journaled transversely of the frame and having a peripheral opening, means for rotating the drum, a cover having guided movement eireumferentially of the drum for closing the opening, and means on the frame and movable into and out of operative position for holding the cover from movement as the drum moves into dumping position with the opening at the under side of the drum.

LEWIS L. CARTER.

Executed in presence of us as Witnesses:

FLOYD S. CARTER, CARL B. WINTLER.

Gopies of this patent may be obtained for five cents each, by addressing the Gommiseimner of Intenta, Washinon, D. 03. 

